Truck drivers are testing positive for marijuana at a higher rate, causing an industry that’s already struggling with finding labor to lose more existing workers. A new report from the U.S. Department of Transportation shows that nearly 41,000 truck drivers tested positive for marijuana in 2022 — a 32% increase over the previous year’s figure. More than 100,000 truck drivers … [Read more...] about Spike in truck driver marijuana use compounds industry’s labor shortage